🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 908.2

Radius: 10.9

Gravity: 7.64 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.51 AU - 0.67 AU

Year: 302 Days

Day: 9.7 Hours

Environment

Temp: -147 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 67,350,219 km

• M1: 136,134 km (0.089 R)
• M2: 622,776 km (0.029 R)
• M3: 999,613 km (0.089 R)
• M4: 1,651,560 km (0.084 R)
• M5: 2,301,563 km (0.119 R)
• M6: 3,010,208 km (0.075 R)
• M7: 3,677,265 km (0.042 R)
• M8: 4,816,453 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26.3

Radius: 14

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.54 AU - 0.66 AU

Year: 310 Days

Day: 6.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 67,350,219 km

• M1: 174,132 km (0.108 R)
• M2: 619,036 km (0.071 R)
• M3: 1,266,496 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.4

Radius: 11.4

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.66 AU - 1.06 AU

Year: 532 Days

Day: 10.1 Hours

Environment

Temp: -170 °C

Axial Tilt: 120.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 67,350,219 km

• M1: 141,819 km (0.095 R)
• M2: 606,021 km (0.043 R)
• M3: 970,292 km (0.054 R)
• M4: 1,357,002 km (0.073 R)
• M5: 1,989,352 km (0.105 R)
• M6: 2,510,851 km (0.093 R)
• M7: 2,968,321 km (0.039 R)
• M8: 3,503,582 km (0.044 R)
• M9: 4,480,755 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833

Radius: 12.3

Gravity: 5.51 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.14 AU - 1.38 AU

Year: 943 Days

Day: 6.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 67,350,219 km

• M1: 153,039 km (0.092 R)
• M2: 735,423 km (0.063 R)
• M3: 1,176,587 km (0.106 R)
• M4: 2,715,949 km (0.048 R)
• M5: 4,560,641 km (0.053 R)
• M6: 5,035,165 km (0.117 R)
• M7: 6,501,523 km (0.115 R)
• M8: 7,009,259 km (0.045 R)
• M9: 9,224,354 km (0.063 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 847.1

Radius: 11.2

Gravity: 6.75 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.07 AU - 1.61 AU

Year: 1034 Days

Day: 11.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 67,350,219 km

• M1: 143,614 km (0.086 R)
• M2: 499,358 km (0.06 R)
• M3: 939,624 km (0.115 R)
• M4: 1,505,703 km (0.077 R)
• M5: 2,043,357 km (0.063 R)
• M6: 2,450,862 km (0.069 R)
• M7: 3,447,184 km (0.083 R)
• M8: 5,639,391 km (0.109 R)
• M9: 6,871,629 km (0.06 R)
• M10: 7,236,947 km (0.061 R)
• M11: 8,006,927 km (0.094 R)
• M12: 8,661,418 km (0.053 R)
• M13: 9,117,392 km (0.047 R)
• M14: 10,139,594 km (0.078 R)
• M15: 11,337,275 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480.9

Radius: 11.1

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.86 AU - 2.02 AU

Year: 1802 Days

Day: 8.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 67,350,219 km

• M1: 144,362 km (0.107 R)
• M2: 501,302 km (0.057 R)
• M3: 1,447,509 km (0.09 R)
• M4: 1,964,818 km (0.094 R)
• M5: 2,462,830 km (0.088 R)
• M6: 3,598,876 km (0.062 R)
• M7: 4,293,758 km (0.028 R)
• M8: 5,138,388 km (0.082 R)
• M9: 5,973,742 km (0.1 R)
• M10: 7,340,468 km (0.087 R)
• M11: 8,546,377 km (0.061 R)
• M12: 9,879,892 km (0.076 R)
• M13: 10,545,304 km (0.119 R)
• M14: 11,028,804 km (0.076 R)
• M15: 13,270,378 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 795.2

Radius: 7.6

Gravity: 13.77 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 7 AU - 9.26 AU

Year: 15458 Days

Day: 18 Hours

Environment

Temp: -241 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 67,350,219 km

• M1: 97,987 km (0.117 R)
• M2: 493,374 km (0.048 R)
• M3: 902,225 km (0.097 R)
• M4: 1,786,199 km (0.056 R)
• M5: 2,257,282 km (0.077 R)
• M6: 2,668,527 km (0.065 R)
• M7: 3,103,408 km (0.085 R)
• M8: 4,798,053 km (0.037 R)
• M9: 5,148,860 km (0.096 R)
• M10: 6,388,128 km (0.119 R)
• M11: 7,166,785 km (0.107 R)
• M12: 9,388,463 km (0.099 R)
• M13: 10,743,820 km (0.12 R)
• M14: 15,815,188 km (0.07 R)
• M15: 17,072,259 km (0.087 R)
• M16: 19,518,333 km (0.065 R)
• M17: 31,522,366 km (0.097 R)
• M18: 33,254,260 km (0.101 R)
• M19: 44,077,816 km (0.098 R)
• M20: 49,780,487 km (0.094 R)
• M21: 58,122,812 km (0.081 R)
• M22: 62,048,260 km (0.058 R)
• M23: 66,746,680 km (0.076 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 212 - 16,454 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit